diff --git a/assets/js/creations/pattern/pattern_audio.js b/assets/js/creations/pattern/pattern_audio.js
index c479d21c..40363be2 100755
--- a/assets/js/creations/pattern/pattern_audio.js
+++ b/assets/js/creations/pattern/pattern_audio.js
@@ -498,7 +498,8 @@ export async function renderActivePatternToBlob() {
 
           if (events.length > 0) {
             new Tone.Part((time) => {
-              new Tone.Player(track.buffer).connect(volume).start(time);
+              const buf = track.buffer?.get?.() || track.buffer; // ✅ pega AudioBuffer se for ToneAudioBuffer
+              new Tone.Player(buf).connect(volume).start(time);
             }, events).start(0);
           }
         }
@@ -519,21 +520,21 @@ export async function renderActivePatternToBlob() {
         if (PluginClass) {
           // INSTANCIA O PLUGIN NO MUNDO OFFLINE
           // Passamos 'track.params' ou 'track.pluginData' (ajuste conforme seu appState salva os dados)
-          const instrumentInstance = new PluginClass(
-            null,
-            track.params || track.pluginData || {}
-          );
+          const instrumentInstance = new PluginClass(Tone.getContext(), track.params || track.pluginData || {});
 
           // Conecta na cadeia de áudio offline
           instrumentInstance.connect(volume);
 
           // 1. Agendar Notas do Piano Roll
           if (hasNotes) {
+            const TICKS_PER_BEAT = 192;
+            const TICKS_PER_STEP = 48; // 1/16
+            const SECONDS_PER_BEAT = 60 / bpm;
+
             const events = pattern.notes.map((note) => ({
-              time: 0 + note.pos * (48 / 192) * stepInterval, // Conversão aproximada Ticks -> Segundos
-              // Se quiser precisão exata do Tone, use: note.pos * (Tone.Transport.PPQ / 192) / Tone.Transport.PPQ
+              time: (note.pos / TICKS_PER_BEAT) * SECONDS_PER_BEAT,      // ✅ correto
               midi: note.key,
-              duration: (note.len / 192) * (60 / bpm), // Duração em segundos
+              duration: (note.len / TICKS_PER_BEAT) * SECONDS_PER_BEAT,  // ✅ já estava ok
               velocity: (note.vol || 100) / 100,
             }));
 
@@ -572,6 +573,11 @@ export async function renderActivePatternToBlob() {
     transport.start();
   }, duration);
 
+  const ch = buffer.getChannelData(0);
+  let peak = 0;
+  for (let i = 0; i < ch.length; i++) peak = Math.max(peak, Math.abs(ch[i]));
+  console.log("[Render] peak =", peak);
+
   const blob = bufferToWave(buffer);
   return blob;
 }
@@ -1261,6 +1267,11 @@ export async function renderProjectToBlob({ tailSec = 0.25 } = {}) {
     transport.start();
   }, duration);
 
+  const ch = buffer.getChannelData(0);
+  let peak = 0;
+  for (let i = 0; i < ch.length; i++) peak = Math.max(peak, Math.abs(ch[i]));
+  console.log("[Render] peak =", peak);
+
   return bufferToWave(buffer);
 }